บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Differential expression of the chilling-injury induced physiological disorder of woolliness in peaches and nectarines.

Retamales J., Campos-Vargas R.

5th International Postharvest Symposium . Volume of Abstract . Verona, Italy 6-11 June 2004. page 6

2004

บทคัดย่อ

Differential expression of the chilling-injury induced physiological disorder of woolliness in peaches and nectarines. Expression of the chilling injury disorder known as woolliness or mealiness is common in peaches and nectarines exported from Chile, as they are submitted to prolonged exposure to cold temperatures during transport to the markets.

A project has been initiated to study aspects of functional genomics as related with induction and expression of the disorder in a number of varieties of peaches and nectarines selected according to presumed differential susceptibility to the problem.

Differential expression of woolliness within each variety has also been attained by submitting the fruit to different storage periods and temperatures, with a temperature not resulting in chilling injury, i.e. 10 °C, and two temperature levels leading to subsequent problems, using 0 °C and 4 °C to induce and to attain maximal expression, respectively.Thus, the different varieties of peach and nectarines did actually show differences in propensity to the physiological disorder, leading to characterization of expression of the lack of juiciness in fruits attaining the ripe stage by using the objective free-juice method (Crisosto and Labavitch, 2002) and correlating such results with subjective determinations as normally performed in similar studies.